Preheat oven to 375.

Separate the egg whites from the yolks. Add Cream of Tartar to the whites and beat until soft peaks are achieved.

In a food processor combine the egg yolks, 1/3 of the beaten egg whites, melted butter, almond flour, baking powder and salt. Mix until combined.

Add the remaining 2/3 of the egg whites and gently process until fully incorporated.

Pour mixture into a buttered loaf pan. Bake for 30 minutes. Enjoy